It is really hard for me to compare The Cabins at FW with the others. It is just so different. I adore the cabins, but they are such a different experience from any of the other Disney-feel moderates. For a true Disney-feel moderate where I plan to spend a lot of times in the parks, then I have to go with POR. I just love the landscaping, the layout, the theming, the music, the DTD boats, the RRs, and the Riverside Mill. However, if I want a vacation where I am spending lots of time at the resort, I would go with FW. The bunk beds, the bike riding, the horses, the beach fireworks, the campfire, the deck, the peace and quiet . . . Really feels like the perfect campground.
Also, it makes a big difference whether my husband goes. On an all-girls trip with my kids and my mom, (which I take more often than a family trip), I prefer POR because I don't want to feel isolated. With my husband, the cabins give us some privacy and I don't mind being so isolated.